Users trying the sample receipt flow in Expenses now see an animation that makes the feature feel clearer and more engaging. This improves the first-use experience by showing progress when a sample receipt is launched.

[ADD] hr_expense_extract: add sample receipt animation

Add an animation when the user clicks on `Try Sample Receipt`.

Task-id: 3946155

This adds a guided animation when users choose to try a sample receipt in Expenses. It helps users better understand the receipt scanning experience before using their own documents.